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Finding the Fourth Proportional to 404,219.52, 606,384.60 and 137,908.53

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Solution

The fourth proportional to 404,219.52, 606,384.60 and 137,908.53 is: 206,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,219.52 : 606,384.60 = 137,908.53 : x
  2. Step 2: Convert to fraction form
    404,219.52/606,384.60 = 137,908.53/x
  3. Step 3: Cross multiply
    404,219.52x = 606,384.60 × 137,908.53
  4. Step 4: Simplify right side
    404,219.52x = 83,625,608,800.64
  5. Step 5: Solve for x
    x = 83,625,608,800.64/404,219.52
  6. Step 6: Final answer
    x = 206,881.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.